absorbance

[ ab-sawr-buhns, -zawr- ]

noun

, Physics.

1. the capacity of a substance to absorb radiation, expressed as the common logarithm of the reciprocal of the transmittance of the substance.

absorbance

/ əbˈsɔːbəns; -ˈzɔː- /

noun

1. physics a measure of the light-absorbing ability of an object, expressed as the logarithm to base 10 of the reciprocal of the internal transmittance See transmittance

Word History and Origins

Origin of absorbance¹

First recorded in 1945–50; absorb(ent) + -ance

Example Sentences

The new method monitors neutral lipids within LDs directly by detecting changes in IR absorbance.

From Science Daily

A photochemistry lab at Harvard collaborated in the research by providing measurements of the UV absorbance patterns of ferric iron under extreme acidic conditions, in an attempt to mimic the even more extreme Venusian clouds.

From Science Daily

The acoustic absorbance provided by the jeans greatly reduced the reverberations produced by the canopy, improving the sound quality of the 28,000-square-foot courtyard.

From Washington Post

Protein concentration was estimated by absorbance at 280 nm with a predicted extinction coefficient of 115,600 M−1 cm−1.

From Nature

Thus, the 2D spectrum directly separates the linear absorbance spectrum of the mixture on the left into the spectra of its components on the right.

From Nature